This is a specially designed for adult female, It according to physiological characteristic designed to women. Especially for management of contraception, plan to get pregnant or Period not rule for services, It can forecast period of ovulation and safe period, It is an intimate diary for record important physiological parameters.------------------------------------Functions and features:1. Recording rules and irregular menstrual date.2. Calculate the ovulation period, the safe period and other physiological period.3. View to the next menstrual days before or delayed days.4. Reminder: menstruation, ovulation, the safe period can be provided with a reminder in advance.5. The menstrual date and comments can be used by email to derive for backup or for medical use.6. You can use the cute face to record the mood and symptoms about your menstrual daily.7. Through the expected in the ovulation period and you can know your pregnancy time.8. It has password protection function and it can protect your information.Method of use:1.Press the button In a monthly menses start, The tracker will recorded menstrual date, and according to the latest 3 months of the menstrual cycle to calculate an average value, thus predicting the next menstrual start date.2. You can use simple monthly calendar view, check that month or future menstruation dates, ovulation and pregnancy time and mood and symptom information.